Laboratoire de l'Informatique et du Parallélisme » CIAB

#! /bin/bash

#

# Generate a /etc/hosts files that will be use

# by dnsmasq on the front end.

# 

#

# Get the directory of the script.

SCRIPT_PATH=`dirname $0`

# Get the script name.

SCRIPT_NAME=`basename $0`

# Source the common configuration variables.

. $SCRIPT_PATH/c-i-a-b.common

# Clean up the file

HOSTS_FILE="${SCRIPT_PATH}/${TEMPLATES_DIR}/etc/${HOSTS_FILE_BASENAME}"

rm -f $HOSTS_FILE

# Local host static entry

echo 127.0.0.1 localhost >> $HOSTS_FILE

# Compute the file entries for the compute nodes.

for i in `seq 1 $COMPUTE_NODE_MAX_NUM`

  do

    NODE_NUMBER=$i

    NODE_NUMBER_STRING=$NODE_NUMBER

    # Normalize the node numbers for the node names on 3 characters.

    while [ ${#NODE_NUMBER_STRING} -lt 3 ]

      do

        NODE_NUMBER_STRING="0$NODE_NUMBER_STRING"

    done

    COMPUTE_NODE_NAME="${COMPUTE_NODE_NAME_PREFIX}${NODE_NUMBER_STRING}"

    echo -n "${COMPUTE_NODE_STATIC_NETWORK_PREFIX}.${NODE_NUMBER} " >> $HOSTS_FILE

    echo -n "${COMPUTE_NODE_NAME}.$CLUSTER_DOMAIN_NAME " >> $HOSTS_FILE

    echo "${COMPUTE_NODE_NAME}" >> $HOSTS_FILE

done

# More static entries

echo -n "${COMPUTE_NODE_STATIC_NETWORK_PREFIX}.$FRONT_END_STATIC_NETWORK_POSTFIX " >> $HOSTS_FILE

echo -n "$FRONT_END_NAME.$CLUSTER_DOMAIN_NAME " >> $HOSTS_FILE

echo  $FRONT_END_NAME >> $HOSTS_FILE

echo -n "${COMPUTE_NODE_STATIC_NETWORK_PREFIX}.$COMPUTE_NODE_MODEL_STATIC_NETWORK_POSTFIX " >> $HOSTS_FILE

echo -n "$COMPUTE_NODE_MODEL_NAME.$CLUSTER_DOMAIN_NAME " >> $HOSTS_FILE

echo $COMPUTE_NODE_MODEL_NAME >> $HOSTS_FILE

echo \# The following lines are desirable for IPv6 capable hosts >> $HOSTS_FILE

echo ::1     ip6-localhost ip6-loopback >> $HOSTS_FILE

echo fe00::0 ip6-localnet >> $HOSTS_FILE

echo ff00::0 ip6-mcastprefix >> $HOSTS_FILE

echo ff02::1 ip6-allnodes >> $HOSTS_FILE

echo ff02::2 ip6-allrouters >> $HOSTS_FILE

echo

echo Copy the \"$HOSTS_FILE\" file to the frontend.

echo

exit 0